proxysubject.java

来自「这个是我做j2ee培训时候自己整理和编写的设计模式的学习例子」· Java 代码 · 共 30 行

package org.hyq.proxy;

public class ProxySubject implements Subject {
	private RealSubject realSubject;

	public ProxySubject() {
	}

	public void request() {
		preRequest();

		if (realSubject == null) {
			realSubject = new RealSubject();
		}
		realSubject.request();

		postRequest();
	}

	private void postRequest() {
		System.out.println("From post request");

	}

	private void preRequest() {
		System.out.println("From pre request");

	}

}